package com.zr.web;

import com.zr.pojo.User;
import com.zr.service.UserService;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.*;
import java.io.IOException;
@WebServlet("/loginServlet")
public class LoginServlet extends HttpServlet {
    private UserService service= new UserService();
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        //1.获取用户名和密码
        String username = req.getParameter("username");
        String password = req.getParameter("password");
        String remember = req.getParameter("remember");
        //2.调用service
        User user=service.login(username,password);
        //System.out.println(user);
        //System.out.println(remember);
        //3.判断
        if(user !=null){
            //登录成功，跳转到查询所有的BrandServlet

            //判断用户是否勾选记住我，字符串写前面是为了避免出现空指针异常
            if("1".equals(remember)){
                //勾选了，发送Cookie
                //1. 创建Cookie对象
                Cookie c_username = new Cookie("username",username);
                Cookie c_password = new Cookie("password",password);
                // 设置Cookie的存活时间
                c_username.setMaxAge( 60 * 60 * 24 * 7);
                c_password.setMaxAge( 60 * 60 * 24 * 7);
                //2. 发送
                resp.addCookie(c_username);
                resp.addCookie(c_password);
            }
            //resp.getWriter().write("sucess");
            //将登陆成功后的user对象，存储到session
            HttpSession session = req.getSession();
            session.setAttribute("user",user);
            resp.sendRedirect("/brand.html");

        }else {
            // 登录失败,
            // 存储错误信息到request
            req.setAttribute("login_msg","用户名或密码错误");
            // 跳转到login.jsp
            req.getRequestDispatcher("/login.jsp").forward(req,resp);
        }
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        this.doGet(req, resp);
    }
}
